With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
atmIlmiNetPrefixPrefix
Cisco ATM Ilmi Net Prefix Prefix
1.3.6.1.2.1.37.1.14.1.16.1.1
The network prefix specified for use in ILMI address registration.
Back to ATM2-MIB MIB page.
IPHost Network monitor allows you to monitor atmIlmiNetPrefixPrefix on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.